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How to Tell a Mint Coin

The condition of a coin is one of the most important factors when assessing its value. Evaluating a coin in this way is known as "grading." The term "mint" implies that the coin is in as perfect a condition as it was when the mint first issued it, although it isn't a term in most official grading designations. The American Numismatic Association's highest designations are Brilliant Uncirculated (BU) and Uncirculated (Unc), which correspond to mint and near-mint.

Things You'll Need

Jeweler's loupe

Instructions

- 1
  Look at both sides of the coin before beginning the grading process. If you detect any blemishes at all upon this cursory examination, then you won't be able to describe your coin as mint. If one side is more blemished than the other, then grade the coin using that weaker side, paying special attention to any decorative features that might have sustained damage.
- 2
  Examine the parts of the coin that stand out in relief from the background or "field" using a powerful jeweler's loupe. If only the very topmost parts show even a slight wear, then there is a good chance your coin can be classed as Almost Uncirculated---that is, approaching mint. If there is no sign of wear on the high points, then turn your attention to the rest of the coin---the rim, the lettering and the field itself. If you spot no blemishes, upgrade the coin to Uncirculated.
- 3
  Examine the coin's "mint luster." This is the delicate, satin-like bloom that is found on uncirculated coins. Is it absolutely perfect? Even contact with a plastic bag can leave a shadow and any kind of handling can make the luster disintegrate. If the luster has small imperfections, then stick with Uncirculated as an appropriate grade for your coin. If, on the other hand, it is all there and totally unblemished, then you can upgrade your coin to the highest category of all---Bright Uncirculated or mint.

Coin Collecting